hello
Basically i am really stuck on the extension questions for this PAG
1. Explain why the transmission of red light increases as the glucose concentration in the sample increases.
2. Why do we centrifuge the sample before taking a colorimeter
3. If the reading for your known glucose solution did not fall whithon your urrve what could you do to obtain an accurate value
SOMEONE PLZZZ HELP ITS IN FOR TOMORROW

(Original post by Mahquestions)
hello
Basically i am really stuck on the extension questions for this PAG
1. Explain why the transmission of red light increases as the glucose concentration in the sample increases.
2. Why do we centrifuge the sample before taking a colorimeter
3. If the reading for your known glucose solution did not fall whithon your urrve what could you do to obtain an accurate value
SOMEONE PLZZZ HELP ITS IN FOR TOMORROW

Im not sure if its too late but this is what i put in case its still useful for others1) transmission increases as glucose conc increases because the colour of the solution gets lighter due to increased amount precipitate. More glucose (higher conc) means more precipitate. Lighter liquid lets more light pass through it so the transmission increases2) to filter solution so that solid particles gather and do not disrupt readings. the calorimeter needs to measure the liquid not the particles.3) Extrapolate the data. So like multiply your results by a certain amount then scale it back down again to get an accurate prediction.